JP2001334847A - Terminal tightening member for insulating trolley wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save space in a width direction and to enhance workability when such working as tightening and holding an insulating trolley wire is conducted. SOLUTION: A terminal tightening member for the insulating trolley wire is provided with a holding part 2 which holds the end part of an insulating trolley wire 1 and a tightening part 3 which is extended outwardly in the longitudinal direction of the insulating trolley wire 1 from the holding part 2 and tights the insulating trolley wire 1. A width W1 of the holding part 2 shall be almost the same as a width W2 of the insulating trolley wire 1 and the tightening part 3 is provided in a position where it remains within the width W2 of the insulating trolley wire 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated trolley wire terminal tightening member for pulling and tightening an end of an insulated trolley wire for supplying power, and more particularly, to a method for tightening and holding an insulated trolley wire. The present invention relates to a technique for saving space in the width direction and improving workability.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 14, for example, an insulated trolley wire 1 used for supplying power to a hoist crane H in a factory is held tight by an end tightening member Aa. The terminal tightening member Aa includes a holding portion 2a that holds an end of the insulating trolley wire 1 and a tightening portion 3a that extends from the holding portion 2a outward in the longitudinal direction of the insulating trolley wire 1 and tightens the insulating trolley wire 1. Have.

As shown in FIG. 12, in the terminal tightening member Aa of the insulated trolley wire 1, the wires 1a, 1b, 1c and 1d of the insulated trolley wire 1 are respectively connected to the terminal plate 5a.
a, 5b, 5c and 5d are fixed with screws 6, and the respective terminal plates 5a, 5b, 5c and 5d are engaged with the engaging recesses 8a, 8b, 8c and 8d of the terminal tightening insulator 7, and the terminal tightening insulator is provided. A coil spring 9 is inserted through a bolt 12 penetrating through the coil 7, and the coil spring 9 is pressed against a bracket 10 that is fixed and held, thereby tightening and holding the insulating trolley wire 1. Reference numeral 11 denotes a cover.

[0004]

In the terminal tightening member Aa of such an insulating trolley wire 1, both ends in the width direction of the terminal tightening insulator 7 as a holding portion 2a for holding the end of the insulating trolley wire 1. In this case, the width of the holding portion 2a is wider than that of the insulated trolley wire 1, so that the width of the terminal tightening member Aa is increased and a space in the width direction is required. However, there is a problem that the workability in a narrow place where the insulating trolley wire 1 is constructed is reduced.

[0005] The present invention has been made in view of such a problem, and when performing the work of tightening the insulated trolley wire, the insulation trolley wire which can save the space in the width direction and can improve the workability. It is an object to provide a terminal tightening member.

[0006]

According to a first aspect of the present invention, a holding section 2 for holding an end of an insulated trolley wire 1 and a holding section 2 are provided.
And a tightening portion 3 extending in the longitudinal direction of the insulated trolley wire 1 to tighten the insulated trolley wire 1, and a terminal tightening member of the insulated trolley wire, wherein the width W1 of the holding portion 2 is reduced. And the tightening portion 3 is provided at a position within the width W2 of the insulated trolley wire 1. According to such a configuration, in other words, the tightening portion 3 is connected to the width W of the insulating trolley wire 1.
2 and the width W1 of the holding portion 2 is made substantially the same as the width W2 of the insulating trolley wire 1. Therefore, when performing the work of tightening and holding the insulating trolley wire 1, the holding portion 2 is attached to the insulating trolley wire 1 Of the insulation trolley wire 1 can be tightened even if there is no space in the width direction of the insulation trolley wire 1, and the space can be saved. Is insulated trolley wire 1
Since the width is within the width W2, tightening work can be easily performed.

According to a second aspect of the present invention, the holding section 2 is characterized in that a projection 4 is provided outward in the longitudinal direction, and the tightening section 3 is extended from the projection 4 as a base end. . According to such a configuration, the tightening portion 3 can be separated from the holding portion 2 by the projecting portion 4, and the insulating property when the holding portion 2 includes the terminal plate 5 can be enhanced.

[0008]

Embodiments of the present invention will be described below. FIG. 1A is a plan view, and FIG. 1B is a side view. 2A is a bottom view, and FIG. 2B is a bottom view with a cover removed.

The insulated trolley wire 1 is constructed, for example, as a power supply for a hoist crane installed in a factory, and is tightened and held by a terminal tightening member A. And the workability can be improved.
The details will be described below.

As shown in FIG. 3, the insulating trolley wire 1 has a plurality of strip-shaped conductors 13 covered on one side with an insulating sheath 14. As shown in FIGS. 4 and 5, a part of the insulating sheath 14 is removed from the end of the insulating trolley wire 1 by a drill tool 15, for example, and a cut hole 16 thereof is formed.
Then, the insulating sheath 14 at the distal end is peeled off based on the cutting line C. Although a steel plate 13a is provided along the conductor 13 as necessary, it may not be provided.

FIG. 6 (a) shows a terminal plate 5, in which a screw 6 inserted through a hole 18 of a channel-shaped terminal body 17 is screwed into a screw hole 19 of a terminal screw plate 20, and an insulating trolley wire 1 is formed.
The terminal 13 is pressed into contact with the conductor 13, and the terminal screw plate 20 is drawn toward the screw head side by one layer of screwing, and is pressed against the flange 21 of the terminal body 17 to electrically and mechanically connect the conductor 13 to the terminal plate 5. is there. The terminal plate 5 has a series of conductive plates 22.
Extend so that a power supply line (not shown) can be connected.

As shown in FIG. 2B, the terminal tightening insulator 7 has the same number of engagement recesses 8a and 8 as the number of conductors 13.
b, 8c and 8d are formed, and the engagement recesses 8a, 8
b, 8c and 8d, the terminal plate 5 is engaged and the terminal tightening insulator 7
Is pulled in the length direction of the insulating trolley wire 1 so that the terminal plate 5
Is in contact with the end wall surface 24 of the engagement recess 8a so that the insulating trolley wire 1 can be tightened.

An extension plate 25 forming the protrusion 4 is connected to the terminal tightening insulator 7 by a screw 26, and the bolt 12 is connected to a connection piece 27 formed by bending from the protrusion 4. The extension plate 25, the terminal tightening insulator 7, and the terminal plate 5 are compressed by a nut 28 and pressed against the fixed bracket 10.
, The insulating trolley wire 1 is tightened.

In this case, the width W1 of the terminal tightening insulator 7 constituting the holding portion 2 for holding the insulating trolley wire 1 is substantially the same as the width W2 of the insulating trolley wire 1, and is slightly larger in the embodiment. 3 is provided at a position within the width W2 of the insulated trolley wire 1, preferably at the center. As described above, since the tightening portion 3 is accommodated in the width W2 of the insulating trolley wire 1 and the width W1 of the holding portion 2 is substantially equal to the width W2 of the insulating trolley wire 1, the insulating trolley wire 1 is tightened and held. When performing the construction, the holding portion 2 does not protrude in the width direction of the insulating trolley wire 1,
Even if there is no space in the width direction of the insulating trolley wire 1, the insulating trolley wire 1 can be tightened, space can be saved, and the tightening portion 3 is within the width of the insulating trolley wire 1. Therefore, it is easy to perform tightening construction.

Further, the holding portion 2 is provided with a protruding portion 4 outward in the longitudinal direction, the tightening portion 3 is extended from the protruding portion 4 as a base end, and the tightening portion 3 is separated from the holding portion 2 by the protruding portion 4. It is possible to increase the insulation when the holding portion 2 is provided with the terminal plate 5. Reference numeral 23 denotes a reinforcing rib. The protruding portion 4 is formed by, for example, resin molding,
May be provided integrally with the casing.

FIGS. 9 and 10 show another embodiment.
However, the basic configuration of this embodiment is the same as that of the above-described embodiment, and the common portions are denoted by the same reference numerals and description thereof is omitted.

In this embodiment, a rib 29 is formed on the connecting piece 27 to increase the strength.

[0018]

According to the first aspect of the present invention, there is provided a holding portion for holding an end of the insulating trolley wire, and a tightening portion extending from the holding portion outward in the longitudinal direction of the insulating trolley wire to tighten the insulating trolley wire. The terminal tightening member of the insulated trolley wire, the width of the holding portion is substantially the same as the width of the insulated trolley wire, and the tightened portion is provided at a position within the width of the insulated trolley wire. Since the width of the holding part is almost the same as the width of the insulation trolley wire by holding the part within the width of the insulation trolley wire, when performing the work to tighten and hold the insulation trolley wire, the holding part is It does not protrude in the width direction and can be used to tighten the insulation trolley wire even if there is no space in the width direction of the insulation trolley wire. Because there within the width of the Lee line, there is an advantage that it is easy performs a tightening construction.

According to the second aspect, in addition to the configuration of the first aspect, the holding portion is provided with a protruding portion outward in the longitudinal direction, and the tightening portion extends from the protruding portion as a base end. In addition to the effect of item 1, there is an advantage that the tightening portion can be separated from the holding portion by the projecting portion, and the insulating property when the holding portion has the terminal plate can be enhanced.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, wherein (a) is a plan view and (b) is a side view.

2A is a bottom view, and FIG. 2B is a bottom view with a cover removed.

3A and 3B show an insulating trolley wire of the above, wherein FIG. 3A is a front view and FIG. 3B is a bottom view.

4A is a perspective view, and FIG. 4B is a plan view showing an action of peeling off an insulating sheath.

FIGS. 5A and 5B are perspective views showing an action of peeling off an insulating sheath.

6A is a perspective view of a terminal plate, and FIGS. 6B and 6C are cross-sectional views showing an operation of connecting a conductor to the terminal plate.

7A and 7B show the terminal plate of the above, wherein FIG. 7A is a side view and FIG.
Is a bottom view, (c) is a side view, and (d) is a plan view.

FIG. 8 shows a terminal screw plate of the above, where (a) is a plan view,
(B) is a partially broken side view, and (c) is a side view.

FIG. 9 is a bottom view showing another embodiment of the above.

FIG. 10A is a front view of the same, and FIG. 10B is a rear view.

11A and 11B show a conventional example, in which FIG. 11A is a plan view and FIG. 11B is a side view.

12A is a bottom view of the above, and FIG. 12B is a bottom view with a cover removed.

13A is a front view of the same, and FIG. 13B is a rear view of the same.

FIG. 14 is an overall perspective view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulated trolley wire 2 Holding part 3 Tightening part 4 Projection part

Claims (2)

[Claims] 1. An end of an insulating trolley wire, comprising: a holding portion for holding an end of the insulating trolley wire; and a tightening portion extending from the holding portion outward in the longitudinal direction of the insulating trolley wire and tightening the insulating trolley wire. A tightening member, wherein the width of the holding portion is substantially equal to the width of the insulating trolley wire, and the tightening portion is provided at a position within the width of the insulating trolley wire. Element. 2. A terminal tightening device for an insulated trolley wire according to claim 1, wherein said holding portion is provided with a projecting portion extending outward in the longitudinal direction, and a tightening portion is extended from said projecting portion as a base end. Element.